public function permissionModel_defaultPermissions_handler($Sender)
{
$Sender->addDefault(RoleModel::TYPE_MEMBER, array('Conversations.Conversations.Add' => 1));
$Sender->addDefault(RoleModel::TYPE_MODERATOR, array('Conversations.Conversations.Add' => 1));
$Sender->addDefault(RoleModel::TYPE_ADMINISTRATOR, array('Conversations.Conversations.Add' => 1));
}